source: xtideuniversalbios/trunk/Assembly_Library/Src/Menu/MenuTime.asm@ 105

Last change on this file since 105 was 105, checked in by Tomi Tilli, 14 years ago

Changes to Assembly Library:

  • More optimizations to reduce size.
  • Removed some utility functions to reduce size.
File size: 3.1 KB
RevLine 
[41]1; Project name : Assembly Library
2; Description : Menu timeouts other time related functions.
3
4; Section containing code
5SECTION .text
6
7;--------------------------------------------------------------------
[60]8; MenuTime_StartSelectionTimeoutWithTicksInAX
[41]9; Parameters
[60]10; AX: Timeout ticks
[41]11; SS:BP: Ptr to MENU
12; Returns:
13; Nothing
14; Corrupts registers:
[60]15; AX, BX
[41]16;--------------------------------------------------------------------
17ALIGN JUMP_ALIGN
[60]18MenuTime_StartSelectionTimeoutWithTicksInAX:
19 push ds
20 call PointDSBXtoTimeoutCounter
21 call TimerTicks_InitializeTimeoutFromAX
22 or BYTE [bp+MENU.bFlags], FLG_MENU_TIMEOUT_COUNTDOWN
23 pop ds
[41]24 ret
25
26
27;--------------------------------------------------------------------
[60]28; MenuTime_StopSelectionTimeout
[41]29; Parameters
30; SS:BP: Ptr to MENU
31; Returns:
32; Nothing
33; Corrupts registers:
[60]34; AX, BX, DX, SI, DI
[41]35;--------------------------------------------------------------------
36ALIGN JUMP_ALIGN
[60]37MenuTime_StopSelectionTimeout:
38 test BYTE [bp+MENU.bFlags], FLG_MENU_TIMEOUT_COUNTDOWN
[105]39 jz SHORT TimeoutAlreadyStopped
[60]40 and BYTE [bp+MENU.bFlags], ~FLG_MENU_TIMEOUT_COUNTDOWN
41 jmp MenuBorders_RedrawBottomBorderLine
[41]42
43
44;--------------------------------------------------------------------
45; MenuTime_UpdateSelectionTimeout
46; Parameters
47; SS:BP: Ptr to MENU
48; Returns:
49; CF: Set if timeout
50; Cleared if time left
51; Corrupts registers:
[60]52; AX, BX, SI, DI
[41]53;--------------------------------------------------------------------
54ALIGN JUMP_ALIGN
55MenuTime_UpdateSelectionTimeout:
[60]56 test BYTE [bp+MENU.bFlags], FLG_MENU_TIMEOUT_COUNTDOWN
57 jz SHORT .ReturnSinceTimeoutDisabled
58
[41]59 push ds
[45]60 call PointDSBXtoTimeoutCounter
[60]61 call TimerTicks_GetTimeoutTicksLeftToAXfromDSBX
[41]62 pop ds
[60]63 jnc SHORT .RedrawSinceNoTimeout
64 and BYTE [bp+MENU.bFlags], ~FLG_MENU_TIMEOUT_COUNTDOWN
65 stc
[41]66 ret
67
68ALIGN JUMP_ALIGN
[60]69.RedrawSinceNoTimeout:
[62]70 call MenuBorders_RedrawBottomBorderLine
[60]71 clc
[41]72.ReturnSinceTimeoutDisabled:
[105]73TimeoutAlreadyStopped:
[41]74 ret
75
76
77;--------------------------------------------------------------------
[60]78; MenuTime_GetTimeoutSecondsLeftToAX
[41]79; Parameters
80; SS:BP: Ptr to MENU
81; Returns:
[45]82; AX: Seconds until timeout
[41]83; Corrupts registers:
[60]84; AX
[41]85;--------------------------------------------------------------------
86ALIGN JUMP_ALIGN
[60]87MenuTime_GetTimeoutSecondsLeftToAX:
88 push ds
89 push dx
90 push cx
91 push bx
92
[45]93 call PointDSBXtoTimeoutCounter
[60]94 call TimerTicks_GetTimeoutTicksLeftToAXfromDSBX
[62]95 jc SHORT .TimeoutHasOccurredSoMakeSureTicksAreNotBelowZero
[60]96
[45]97 xchg dx, ax
[60]98 call TimerTicks_GetSecondsToAXfromTicksInDX
99 jmp SHORT .PopRegistersAndReturn
[62]100.TimeoutHasOccurredSoMakeSureTicksAreNotBelowZero:
[60]101 xor ax, ax
102.PopRegistersAndReturn:
103 pop bx
104 pop cx
105 pop dx
106 pop ds
107 ret
[41]108
109
110;--------------------------------------------------------------------
[45]111; PointDSBXtoTimeoutCounter
[41]112; Parameters
113; SS:BP: Ptr to MENU
114; Returns:
115; DS:BX: Ptr to timeout counter
116; Corrupts registers:
[45]117; Nothing
[41]118;--------------------------------------------------------------------
119ALIGN JUMP_ALIGN
[45]120PointDSBXtoTimeoutCounter:
121 push ss
122 pop ds
123 lea bx, [bp+MENU.wTimeoutCounter]
124 ret
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